Stapling machine



1953 w. G. PANKONIN 2,658,197

STAPLING MACHINE Filed June 5, 1950 4 Sheets-Sheet l INVENTOR. WILLIAMG. PANKONIN Arrommv Nov. 10, 1953 w. G. PANKONIN STAPLING MACHINE 4Sheets-Sheet 2 Filed June 5 1950 INVENTOR. WILLIAM G. PANKONIN BY Wm MArroauav Nov. 10, 1953 w, e. PANKONIN 2,653,197

STAPLING MACHINE Filed June 5, 1950 4 Sheets-Sheet 3 3EEEHIIIIIIIIQTITII v V V 1 lso INVENTOR. wlLLlAM 6.Pmmomu .BY

Afraaucv 1953 w. G. PANKONIN 2,658,197

STAPLING MACHINE Filed June 5, 1950 4 Sheets-Sheet 4 INVENTOR. WILLIAMG. PANKONIN m grzwv M Ma A-rroauev Patented Nov. 10, 195 3 UNITED STATESPATE NT OFFICE.

This invention relates to improvements in stapling machines,particularly the so-called pliertype.

Stapling machines of the plier type are ,convenient to use and arereadily kept in desk drawers and the like when not in use. However, theyhave been limited to use only by being held in the hand of the operator.

It is an object of this invention, therefore, to provide a staplingmachine of the plier type which may also be used as a desk stapler and atacker.

Another object of the invention is to provide a stapling machine of theplier type which is small, light in weight, neat in appearance, and yetrelatively inexpensive to manufacture.

These objects are obtained by providing a stapling machine which has amain housing within which is pivotally mounted a unit consisting of astaple magazine, an injection chute, and a staple driver. A lower handlewith an anvil in alinement with such chute is pivoted to the rear ofsuch housing. An upper handle, which is operatively associated with suchdriver, is pivoted to the front of such housing. The machine may be heldby these handles in one hand and operated as a plier type machine. Themain housing slidably supports a plunger which is also operativelyconnected to the staple driver. A lost motion connection between suchdriver and upper handle permits the plunger to operate without operatingsuch handle. A lost motion lock restrains the lower handle to suchmovement with respect to the housing as is necessary for clinchingstaples when the machine is used as a plier or desk type. Upondisengagement of such lock the lower han dle may be swung rearwardly andupwardly to expose the bottom ofthe main housing and ejection chute andthe stapling machine may then be used as a. tacker. Thelower handle hasa movable support for desk type operation which may be swung from pliertype position (wherein it fits in the fingers of the hand) to desk typeposition where it supports the machine on a desk or flat surface. Whenthe stapling machine is used as a plied type, the upper and lowerhandles are both held in the same hand and the squeezing of the handeffects an operation of thestapler. When the stapler is used as a desktype, the plunger is merely pressed downwardly to drive and clinch thestaples. In this operation theupper handle is not moved relative to themain housing. When the stapling machine is used as a tacker type, thelost motion lockisdisengagedand the lower handle swung out of the wayand the stapledriving operation performed '-by the downward 37 Claims.(01. 1-3) 2 movement of the plunger. The fact that the plunger may beoperated without the operation of the upper handle permits the lowerhandle to be in such out-of-way position.

The novel features, which are considered characteristic of theinvention, are set forth with particularity in the appended claims. Theinvention itself, however, both as to its organizationand its method ofoperation, together with additional objects and advantages thereof, willbest be-un derstood from the following description of a specificembodiment when read in connection with the accompanying drawings, inwhich:

Fig. 1 is a view in side elevation of a stapling machine embodying thepresent invention with the parts positioned for use as a plier type;

Fig. 2 is a top plan view of suchstapling machine;

Fig. 3 is a bottom plan view of such stapling machine;

Fig. 4 isa perspective view of such stapling machine showing thearrangement of the parts when the machine is used as a desk type;

Fig. 5 is a perspective view of such machine showing the arrangement ofthe parts when such stapling machine is used as a tacker;

Fig. 6 is a sectional view taken on line 6-45 of Fig. l;

Fig. 7 is a sectional view similar to that of Fig. 6 with the partsmoved to the position assumed when a staple is driven and clinched whilethe machine is used as a desk type;

. Fig. 8 is a sectional view similar to Fig. 6 with the parts moved tothe position assumed when a staple is driven and clinched while themachine is used as a plier type; and

Fig. 9 is a perspective View of the various parts of such staplingmachine shown in exploded relation.

PRINCIPAL ELEMENTS Referring to the drawings by reference numerals, theprincipal elements of the stapling machine consist of a main housing I0within which is pivotally mounted at the rear thereof a unit 1 2 made upof a staple magazine, an ejection chute, and a driver, an upper handle[4 pivotally mounted at the front of said housing, a plunger I6 slidablymounted in the front of said housing, and a lower handle l8 pivoted atthe 'rear of said housing. The staple driver and plunger are maintainedin normal raised position by a compression spring 20. The upper handleis maintained in normal raised position by a compression spring 22. Theunit I2 is maintained in normal raised posi- 3 tion within the housingby a compression spring 24. The lower handle is maintained normallyspaced from the housing I and ejection chute by a riser spring 26. Alost motion lock 28 in the plier or desk type of use prevents the lowerhandle from swinging out of normal position and permits it to movetoward the housing I8 during the clinching of astaple. A desk support 38movably carried by thelower handlemay. be swung to desk type position orplier type position.

With the above elements arranged as shown in Fig. 1 the stapling machineis ready for hand The upper and. lower operation or plier use. handlesfit within the hand of the operator and as they are moved tion chute ofunit housing In until it engages with lower handle I8, as shown in Fig.8. drives and clinches a staple. In such use the main housing I0 doenot; move relative to'the lower-handle I8.

With the above elements arranged as shown in Fig. 4, the staplingmachine is ready foruse as a desk type. To operatethe machine theplunger I6 is depressed and; the housing I0 and the unit l2,simultaneously move; toward the, handlev I8 until the ejection chutecontacts such lower handle as shown in Fig. 7 Continued movement oftheplunger I6 drives and clinches the staple. In such-operation the handleI4 does not move relative to the main housing I0.

With the above elements arranged as shown in Fig. 5, the staplingmachine is ready for use as a tacker. As a tacker the machine isoperated by depressing the plunger. Since the housing I0 and unit I2 areboth resting on the material into which the staple is to be driven, theinitial operation. of.the plunger makes no change in their relationshipand a complete depression thereof drives the staple into the materialwithout the clinching'of its legs.

Main housing Themain housing I0 .has side walls 82 joined by a frontwall-34.. At the rear of the main hous-, ing III there are openings 36for holding the rear pivot 88. Adjacent these openings are slots 40which, functionv in the tacker position of the device. A of. slots 42 inthe side walls 32 enilage lugs 95 on a.plate 84 to hold it so that itacts as a base for the spring 24. Near the front the walls 32, haveupward projections with slots, whichvengage lugs on the rear guide 46 tohold it in place and let it act as an abutment for the handle I4 limitinits rearward movement. Round openings 48 in such projections receivepins on the ends of the center guide 50 to hold it in place for guidingthe plunger I6.

towards each other the ejec- I2 is forced downwardlyfrom.

Continued squeezingend inserted through the slot 58 and positioned infront; of the forward pivot 68 (see Fig. 6) to continually urge lock 28into locking position.

Staple, magazine, and driver unit The unit I2 consists of a magazine, anejection chute, a magazine follower, a staple-driving blade, and ablade-supporting arm, and functions as a unit upon the operation of thearm to drive staples from the magazine out through the ejection chute.The magazine consists of a core I4 on which staples ride in straddlefashion enclosed by a casing member I6 to provide an A final pair ofslots 52 engage lugs on the front guide 54 and secure it so that it alsoacts as a cover, plate for the front portion of thetop of housing,Ill... Atthe edges of the front wall 34 there are vprovided a pair ofspaced forwardly projecting tabs 56. front wall between such tabs toprovide access to the interior of the housing. These tabs are providedwith openings, 68 in which the pin 62,is mounted to pivotallymount the10st motion, lock 28;. Such pin i held in place by a screw v64'. Nearthe top front the walls 32 have alined-openings 66 in which front pivotpin 68 is mounted to pivotallysecure the upper handle I4, such pin beingheld in place by screw 10. A coil spring 12 A slot 58 .extends inthegroove in the back of the lock 28 and the other ejection chute 18 (seeFig. 6) at the forward end of. the magazine. The details of suchmagazine are shown and described in Patent No. 2,165,572, issued July11, 1939, to William G. Pankonin. The-staple follower mechanismdesignated 88 is shown and described in Patent No. 2,311,412, issuedFebruary 16, 1943, to William G. Pankonin. It is disengageablefrom themagazine and when inserted as shown in Fig. 6 continually urges thestaples toward the ejection chute. A stapledriving blade 82is mounted onthe forward end of a blade-carrying arm 84, the latter being pivoted bypin 88 to upward projections located centrally on the casing. The arm 84is urged to normal raised position, as shown in Fig. 6, by spring 20.The spring is held onplate', which is seated in notches on casing I8,and presses against the under surface of such arm. As previouslyexplained, thespring 24 maintains the unit- I2 in normal raised positionwithin the main housing In as shown in Fig. 6. The spring 24 reactsbetween'U-shaped bridge 80, the legs of which have dovetail keys 8|which fit in keystone notches 92 in the upper edges of the casing 18 soas to exert an upward force thereon, and a plate 94 which, as previouslydescribed, has lugs secured in the notches 42 of the housing. The legsof bridge -loosely slide in notches 88 between the lugs 85;- Thecompression of the spring 24-therefore acts to raise the unit I2upwardly with respect to the housing It. It is desirable to provide atubular spacer 86 which is placedon the pin 38 to hold the sides of theeasing member properly spaced. It is also desirable tohave a fibrepad-91 secured to the rear bottom of the .unit I2 so that when thedevice is used as a tacker (see Fig. 5) such pad may act as a sup portand hold the stapling machine in upright position.

Upper handle The upper handle I4 has a hand portion I82 especiallydesigned to fit in the palm of the hand adjacent the base of the thumb.The sides of thisportion overlap both the sides of the lower handle. I8and the housing Ill. The handle I4 has a front narrow portion I84 thesides of which fit within the. side walls 82 and overlap the sides ofthe blade arm 84. Such sides terminate in spaced ends I86 which straddlethe plunger I4 and have openings I88 which receive the front pivot v68to pivotally mount the handle I4 to the forward end .of the housing. Thedownward movement of the handle I4 is transmitted to the blade arm bymeans of a loose connection link III) which is mounted by pivot H2 andspacer II8 to such handle. Elongated notches H4 in the bottom .of thelink H8 slidably receive pins II6 formed in lateral depressions on thesides of the arm 84. In thenormal orat rest position of the staplingmachine the pins I I6 rest against thetops ofthe notches II4 (see Fig.6) tofix the upper position of arm 84 (the handle position ,spect to thehousing I0.

, notches I I4.

beingnxedbyits abutment with rear guide 46).. When the stapling machineis'operated by the plunger Is the arm 84 will'be depressed until itreaches .the positionshownin Fig. 7, without changing the position ofthe handle I4 with re- In such position the pins H6 are substantially atthe bottom of the The spring 22 acts between the handle I4 and arm 84 tourge the handle l4 to normal or raised position. Such spring is centeredand held in the handle I4 by a projection I I8 and is centered on thearm 84 by a small lug I20.

Plunger The pdunger- I6 has a hollow stem I22, the

side walls of which have slots I24for accommodating the pivoting centerguide 50. Such pivoting is necessary to accommodate the slight swingingmotion of the plunger as its lower end travels in an arc during theoperation of the stapling machine. The plunger terminates in lower'tabsI26 which project through slots I28 in the top of lever 84 and arepivoted to such arm by pivot I30 mounted in openings I3I in the sidewalls thereof. A hand contact cap I32 is secured to the upper end of theplunger for convenience in operating it. Because the plunger is pivotedto the blade arm 84, it will have vertical reciprocal movement even whenthe stapling machine is operated by the cooperative action of thehandles I4 and I8.

' Lower handle The lower handle I8 also functions as a base when thestapling machine is used as a, desk type.

It has a hand-receiving portion I34 provided with convolutions so thatit may be easily held in the fingers of the hand. At its front end I36it suphas a pair of spaced upper arms I40 which slidably overlap thesides of the main'housing l and are provided with teeth I42 which enga ewith teeth I43 on the lock 28 to prevent the handle I8 from swingingaway from the housing I0 beyond the material-receiving position duringthe use of the stapling machine as a plier or desk type. Duringdesk'use, however, the teeth I43 and I 42 will permit the handle I8 toswing into contact with the end of the ejection chute as is shown inFigs. 7 and 8. In such position the teeth I42 and I43 will be spaced andremain in alinement so as to again interengage and limit the swingingapart of the lower handle and main housing. The backs of the teeth arearcuate in shape and in the unconnected position overlap so that whenthe handle I8 is swung from tacker position (shown in Fig. to desk orplier type position the teeth will automatically snapinto overlappingrelationship. While it is not,neces sary, it is desirable to strengthenthe arms I40 by forming therein ridges, indicated at MI. The rear of thehandle I8 is provided with upwardly projecting wings I44 which straddlethe rear end of housing I0. They are provided with openings I46 whichreceive the rear pivot 38 to swingably mount such arm to the housing atthe rear thereof. The wings I provide enough clearance between the pivot38 and the inner bottom of the handle I8 to permit such handle to' clearthe magazine and staple follower as it swings rearwardly and upwardly ofthe housing l0 into tacker position (see Fig. 5) order to hold the ,6handle l8 in suchtacker position the wings I 44 have raised locks I48which snap into frictionally engage the slots 40 when such position isreached. The frictional engagement may be manually overcome to move thehandle I8 back to plier or desk type position. When the stapling machineis being used as a plier or desk type, it is necessary to continuallyurge the handle I8 to its limited downward (outward) position withrespect to the housing In and this is accomplished by the spring 26which is mounted in a riser structure I48 which limits the extent of theaction of such spring. Such riser structure is substantially identicalto that shown and described in Patent No. 2,271,926,issued February 3,1942, to William G. Pankonin.

Support for desk type operation a The support30 for desk type operationcomprises a channel-like member which is curved longitudinally tosubstantially conform to the curvature of the hand-holding portion oflower handle I8. It is channel like in cross section and partiallyoverlaps the bottom of the handle I8 to fit snugly thereagalnst when inthe plier type position as shownin Fig. 1. At its ends the support isprovided with fiat feet I50 which in the desk type position thereof (seeFig. 4) engage a fiat surface at places spaced laterally of the mainhousing to hold'the machine in an upright position. The support issecured to the handle I8 by a headed pin I52 which passes through anopening in the bottom of the lower handle and "is secured to thesupport." A spring I52 encircling said pin reacts between such bottomand' the head of such pin to continually urge the support toward thehandle. "A pair of roundednotches I56 in the central'portion of theupper edges of the support 30 engage the curved lower surface of thehandle I8 to frictionally hold the support In so far as loading themagazine, driving. the

. staple from the ejection chute, and clinching staple legs against theanvil are concerned, the stapling machine herein described operates insubstantially the same manner as those described in the aforementionedpatents. However, because of the special relationship between theplunger I6, the upper handle I4, and the main housing, the staplingmachine may be used as a plier type, a desk type, and a tacker. Aspreviously described, the depression of the plunger I6 will not operatethe upper handle I4 and hence the lower handle I8 may be swung upwardlyto the tacker position of Fig. 5 and still not interfere with theoperation of the machine. The inclusion of the lost motion lock 28between the main housing I0 and the lower handle I8 artist: the. gist inm s new and driving a staple Howeyer, the (squeezing e' r :Iii. q irfd'rdis. d

is in contact with theidwerinahd permits a quiok and thec'entral pm ofwh qi iiir at; n .asu si nt a n qii h rs fisriqommua movement of the,'I'l rewar the handle ompressi'ri'gspring or ap ie s .s i b 'ii ifhaefiect in fpr'cing'the lower handle 18 t'ow'ard'the J rsa'nd the ro tand of l 4 .fi r the housing o. Sinoe sunniono ism-strained housing in.'m factthe r eve'rsejoeu b the lost motion lock ,28 a ounter-rem 4 issetv up which reacts against the 'for'oe applied to each handle andcauses 'a resultant positive drive ments of the principalelements duringthe operation. of the machine. have such details will not again berepeated. In the p i atiqa m r ss siv -tsiss r d t s h u ing Illfunctions as an arm and will be' so termed in the claims.

Although only one. embodiment of the invenv will be r and describedherein, it understood that this application isv intended to W?! 149 oness- F m d fica s m tion is shown.

within the spiritof the invention or scope of the following claims:

I claim:

.1. In a plier type stapler having an operating ihandle pivotallymounted at one end and providedwith an anvil-supporting end, a supportfor desk operation of said site er th n a pii-Ijt 0.? which is pivotedto said 'handle to permit said member to be swung from .pliertypeposition longitudinally, of said handle to desk type position s memb bea d h ndle when positioned in transversely of said handle, to restagainst;v said to provide a portion easily gripped by the fingers whensaid stapler is used as a plier type, said member in saiddeslrtypeposition extending to each side of said handle to providesupport for and maintain said stapler in anupright position,

on a flat surface when said stapler is used for desk type operation. V vV v 2. In a plier type'stapler having an operating handle pivot'aliymounted at one end and provided with an anvil-supporting end, saidhandle having a narrow portion adjacent said pivotally mounted end tofacilitate the gripping thereof by the fingers of the hand, a supportfor desk operation of said stapler comprising a rr1'en ber ich ispivoted'to said handle to permit said member to be swun from plier typeposition longitudinally of said handle to .desk typepositiontransversely oi said handle,

{sai m m er being shaped to"overlief a'nd fit snugly against said narrowportion when posi- .tioned in plier jty'pe' position to provide aportion easily gripped by the fingers when said stapler is, used as puertype, said member in said desk. type position extending to each side ofsaid handle to rovide supportifor and main tain said. stapler in anupright position ona flat "surfacewhen said'stapl'eris' used for'desktype operation.

- er operatinghandlepi'ovided" with ananvil, said ler comprising amemplier type position giantess snag'sieiimemvaewmw been desoribejd andtests said support having its mounting said handle so that "stasis? n alongitudinally curved portion,

a supportjiondesk type operation curved longitu'dinall'y to conform andcur ed; laterally curved portion whereby nagen'gnp m'g portion whenarranged longitu- :di'nally'of said'handle a plier type, saidsupport'having its center pivotled to said curved portionand swln'gableto a powith said curved portion to partially overlap said 'said'supportprovides a as said machine is'used as sition transversely or said handleto hold' said :ho ndl'e'on 'a flat surface when'said machine is se'das'adsk type stapling machine.

4. A plier type stapling machine having a lower operatinghandle'provided with an anvil, said handle having a longitudinallycurved portion,

a suppor torjdesk'type operation curved longitudinally to conform andcurved laterally curved "portion whereby said support provides 'afinger-gripping portion when arrangedlongiwith said curved portion topartially overlap said tudinally of said handle as said machine is usedas a plier type, said support having a pair 0! curvedn'otches cooperablewith said curved portion to hold said support in desk type position,center pivoted to said curved portion and swingable to a positiontransversely of 'said handle to hold said handle on "a fiat'suriace whensaid machine is used as a "desk type stapling machine.

5. A plier type stapling'machine having an operating handle providedwith arr-anvil, a support for desk type operation having a pair ofspaced feet adapted to reston a flat surface and support said machine indesktypeposition, said sup- 'p'ort havingits center pivoted to saidhandle and swingable from plier type position longitudinally of saidhandle to desk type position transversely of said handle, and anintermediate portion on said support curved'longitudinally to provide a.grip for the fingers of the hand of an operator when saidzsupport is inplier type position.

6..In a plierrtype stapling machine having an ejection'ohute from whichstaples are forcibly discharged and an operating handle carrying ananvil against'which'staples are clinched as they are driven from saidchute, means pivotally said anvil, has reciprocal movement toward andfrom said chute to accommodate the reception of material to be stapledbetween said chute and anvil and the pressing'towardeach other of saidanvil and chute during stapling action and to permit said anvil'to beswung from beneath said chute so for releasing said anvil for freemovementaway from said chute beyond said limited reciprocal movementcomprising a tooth onsaid handle directly above and spaced from saidanvil, and a spring-biased member swingably associated with said chuteand normally biased into overlapping relationship with 'saidt'o'oth' toengage said tooth and limit the outward movement of said anvil withrespect to said chute; said member being manually swingable' out "ofove'rlapping relationship with said too'th to'permitsaid anvil tobe'swung clear of I said chute.

type stapling machine having an op- "erating' handle provided with ananvil, main housing, 'said handle "being pivoted at one end to 'saidhousing," saidanvil being swingable by said "handle toward and fromsaiwhousingin theop- 9. eration of said machine, a pair of arms on saidhandle in straddle relationship with said housing, a tooth on each arm,a lost motion lock pivoted to said housing and having a pair of teethone on each side of said housing and interengageable with the teeth onsaid arms, said teeth being spaced so that when interengaged said'anvilwill be spaced from said housing an amount sufiicient to permit materialto be stapled to be inserted therebetween, said teeth unrestrictingrelative movement of said handle toward said housing from saidinterengaged position, and a coiled spring having one end engageablewith said lock to urge said teeth thereof into locking position.

8. A stapling machine having a unit comprising a staple magazineprovided with an ejection chute, a blade-supporting arm pivoted to themagazine, and a staple-driving blade carried by the arm so thatreciprocal movement of thearm causes staples to be driven from theejection chute; ahousing for such unit; a manually op erable plungerguided by said housing and connected with said blade-supporting arm; amanuallyoperable handle pivoted to said housing; and a link forming alostmotionconnection be-' tween said handle andsaidarm to permit saidarm to be operated in one direction by said plunger without transmittingmotion to said handle.

9. In a plier type stapler, a main housinghaving a forward end, a staplemagazine mounted within said housing and having an ejection chutethrough which staples are ejected from said magazine, a base associatedwith said housing and having an anvil in alinement with said chute,staple-driving mechanism for driving staples from said staple magazineone by one against said anvil, a hand-operated plunger reciprocallymounted in said forward end and connected with said mechanism foroperating said mechanism, a lever mounted at said forward end for alsooperating said mechanism, and a loose connection between said lever andsaid mechanism whereby upon movement of said plunger in a staple-drivingdirection said lever is inoperative.

10. In a stapling device having staple-driving mechanism, a handoperable plunger mounted for reciprocal movement and connected with saidmechanism for operating said mechanism for driving staples from saiddevice, a lever pivotally mounted on said device and cooperable withsaid mechanism to also drive staples from said device, there being alost motion connection between said lever and said mechanism, resilientmeans associated with said mechanism for moving said mechanism andplunger outwardly of said stapling device, and second resilient meansoperable between said mechanism and said lever to urge said leveroutwardly of said stapling device, said second means being operable tohold said lever outwardly of said stapling device when said plunger isused to operate said mechanism.

- 11. A stapling machine having a housing .for mounting a hand-operatedstapling plunger, a plunger in said housing having a portion extendingtherefrom, a hand contact area on said portion whereby plunger ismanually depressed, a pivoted handle having a free end for movement toandfrom said housing, a lever in 'said housing associated withsaidplungenand a one way connection between said handle and said leverwhereby movement of said handle in one direction "cooperates with saidlever to operate said plunger and movement of said handle in an oppositedirection does not cause movement of said lever.

12. A stapling machine having a housing, a

reciprocal stapling plunger mounted in said housing, said plungerprojecting above said housing and having a. head for hand operation, ahandle pivoted to said housing having a free end movable to and fromsaid housing, said handle having an opening through which said plungerprojects,'and means connectingsaid plunger and said handle whereby saidhandle also operates said plunger. 1 13. Ina stapling device having amain housing, amagazine for staples carried by said housing, an armpivoted on said magazine, a staple-driving tool carried by said arm todrive staples one by one from said staple magazine, a reciprocalmanually operable plunger pivotally mounted on said arm and guided bysaid housing, said plunger and said arm cooperating to drive the staplesfrom said device.

14. In a stapling machine, a housing, a reciprocal stapling plungermounted in said housing, said plunger having a front wall and arear'wall forming a slot-like opening therebetween, a guide mounted onsaid housing and fitting in said slot to form one bearing for saidplunger, a "staple magazine pivoted in said housing, a blade carryingarm movable in said housing and pivotally connected to said magazine andsaid plun'ger'to guide the lower end thereof, said guide in said slotand saidblade carrying arm cooperatingto control the movement of saidplunger in said housing a. .l .7

15. A stapling device having a housing, a maga zine for staples, stapledriving means carried by said housing'and said magazine, a base memberpivotally mounted to said housing and carrying staple-clinching means,said base member having sides straddling said housing, and disengageablemeansvcoacting between said 1 housing and said sides'to limit therelative movement be tween'said housing and said base member during astaple-driving operation, said disengageable means being positioneddirectly above said stapleclinching means. a i s16. In a hand-operatedstapling device having a mainhousing having a forward end, stapledrivingmechanism in said housing including an ejection chutethrough whichstaples are ejected at said'forward end, a base having a clinching anvilin alinement with said ejection chute against which staple legs areclinched, said base pivoted to said housing, an opening in said baseextending rearwardly from said clinching anvil for receiving material tobe stapled, and means associated between said housing and said base tolimitthe relative outward movement of said base to said housing, .saidmeans being mounted at the forward end" of said opening.

' 17. In a hand-operated stapling machine, a main housing havinga frontwall and rearwardly extending sides, a base swingably mounted to saidside walls, a lock member pivotally mounted to said housing outside saidfront wall, and means on said'bas member in alinement with said lockfandengageable with said lock to establish a locked position of said baseand prevent relative movement of said base away from said housing, saidlock member and said means being disengageable to permit relativemovement of said base and said housing from said lockedposition. T

. -l8.In austapling device having a housing, a magazine i'or preformedstaples carried in and pivoted "to said housing and having an ejectionchute, a staple-driving tool operablein said chute to drive staples fromsaid magazine, "a

reciprocal plunger mounted in said housing and connected indirectly withsaid tool to operate said driving tool, a handle member pivoted on saidhousing, a lost motion connection between said handle member and saiddriving tool whereby said tool may be operated by said plunger withoutoperating said handle member, and a base member swingably mounted tosaid housing, said base member having an anvil against which staplesejected from said chute are clinched when said handle member and saidbase member are jointly moved toward said housing and when said basemember is supported on a fiat surface and said plunger depressed towardsaid base member, said base member being swingable around and away fromsaid chute to permit said device to be usable as a tacker.

19. A plier type stapling machine having oppositely movable handlesspaced to be gripped by the hand of an operator for holding said machineand moved toward each other for operating said machine, a plunger foroperating said machine having an exposed area adapted to be manuallycontacted, said plunger being supported adjacent one of said handles andreciprocally movable toward and away from the other of said handles foroperating said machine, a support for desk type operation carried by theother of said handles and engageable with a flat surface to hold saidmachine with said plunger substantially normal to said flat surface, anda lost motion lock for said other of said handles to permit said handleto have limited relative movement with respect to said one of saidhandles and to be swung away from cooperative relationship therewith.

20. A plier type stapling machine having a main housing provided with afront and rear, a staple magazine and driver unit in said housing, aplunger mounted at said front for operating said unit, an upper handlepivoted to said housing at said front, means providing a lost motionconnection between said handle and said unit whereby said driver unitmay be operated by said plunger without moving said upper handle, alower handle pivoted to said housing at said rear, a lost motion lockoperable between said main housing and said lower handle which whenlocked restrains said lower handle to limited relative movement withrespect to said housing, and a support for desk type operation on saidlower handle, said support when resting on a fiat sur face beingoperable to hold said plunger substantially normal to said surface.

21. A stapling machine having a staple-driving arm, a handle forapplying driving force to said arm in one direction of movement of saidhandle, means for swingably mounting said arm and said handle, meansproviding an inner and outer limit of travel for each of said arm andhandle, a link pivoted to said handle and having an elongated notch inthe lower end thereof, and a stub pin on said arm slidable within saidnotch, said notch being sumciently long to permit said arm and saidhandle to be swung relatively in opposite directions to their oppositeouter limits while maintaining said pin within said notch.

22. A stapling machine as claimed in claim 21 in which said arm has alateral depression within which said lower end of said link is slidablyreceived and within which said pin is mounted.

23. A stapling machine as claimed in claim 21 in which said link has abridge and spaced legs straddling the outside of said arm and the linkis pivoted by a pin passing through said legs,

12 there being a spacer on said pin between said legs to maintain saidlegs spaced from the sides of said arm.

24. In a stapling machine having a housing, a magazine pivoted to saidhousing, a staple-driving arm pivoted to said magazine, a spring actingbetween said arm and said magazine to hold said arm in normally raisedposition, a handle pivoted to said housing and operably associated withsaid arm to apply operating force thereto when said handle is movedtoward said housing, and a spring acting betwen said arm and said handleto hold said handle in normally raised position, said second springbeing located adjacent the pivotal axis of said arm and compressed assaid handle is moved toward said arm without said second spring causingsaid arm to move and compress said first mentioned spring.

25. In a stapling machine having a staple-driving arm provided with atop and sides, an operating plunger for said arm, a slot in said top, atab on said plunger fitting within said slot. and a pin connecting saidtab to said sides below said top.

26. In a stapling machine, a main housing, an elongated magazine withinand pivoted to said housing and having an ejection chute, a drivingblade operatively mounted in said chute, an arm within said housingpivoted to said magazine and connected to said blade, a first springreacting between said arm and said magazine to urge said arm upwardly ofsaid magazine, a second spring reacting between said magazine and saidhousing for urging said magazine upwardly of said housing, a handlepivoted to said housing at the front thereof, said handle having acooperating connection with said arm whereby downward movement of saidhandle causes said arm to operate said blade and eject staples from saidchute, and a third spring reacting between said arm and said handle tourge said handle to raised position.

2'7. In a stapling machine, a main housing, an elongated magazine withinand pivoted to said housing and having an election chute, a drivingblade operatively mounted in said chute, an arm within said housingpivoted to said magazine and connected to said blade, a first springreacting between said am and said magazine to urge said arm upwardly ofsaid magazine, a second spring reacting between said magazine and saidhousing for urging said magazine upwardly of said housing, a handlepivoted to said housing at the front thereof, said handle having acooperating connection with said arm whereby downward movement of saidhandle causes said arm to operate said blade and eject staples from saidchute, and a third spring reacting between said arm and said handle tourge said handle to raised position, said third spring acting on saidarm closely adjacent the pivotal axis thereof whereby the force of suchspring will not overcome the force of said first spring and cause saidarm to move downwardly to transmit force to said magazine withoutdepressing said arm, said second spring acting on said magazine betweenthe pivotal axis of said arm and the pivotal axis or said magazinewhereby said spring will be compressed by the force transmitted by saidfirst spring as said first spring is compressed by the downward movementof said handle to cause said magazine to move downwardly 01 said housingas said handle is moved toward said housing.

28. In a stapling machine, a main housing, an elongated magazine withinand pivoted to said 13 housing and having an ejection chute, a "drivingblade 'opera'tively mounted in said 'chute,an'ar m within said housingpivoted to "said magazine and connected to said balde, a first springreacting between said arm and said magazine to urge said arm upwardlyofusaid magazine, fas'econd spring reacting between said magazineTand'said housing for urging said magazine upwardly of said housing, a handlepivoted to said housing at the front thereof, said handlehaving acooperating connection with said arm whereby downward movement of saidhandle causes said arm to operate said blade and eject staples from saidchute, a third arm and said handle to urge said handle to raisedposition, a lower handle pivoted to said housing at the rear thereof,and a fourth spring reacting between said lower handle and said magazinefor urging said lower handle away from said magazine, said third springacting on said arm closely adjacent the pivotal axis thereof whereby theforce of such spring will not overcome the force of said first springand cause said arm to move downwardly, said second spring acting on saidmagazine between the pivotal axis of said arm and the pivotal axis ofsaid magazine whereby said spring will be compressed by the forcetransmitted by said first spring as said handle is moved toward saidlower handle causing said magazine to swing downwardly of said housingand compress both said second and fourth springs until said ejectionchute engages said lower handle.

29. In a stapling machine; an elongated magazine having an ejectionchute, a staple-driving blade operable in said chute, and a bladesupport pivoted to said magazine and associated with said 7 blade tooperate the same; a first arm pivoted to said magazine at the rearthereof and having an anvil in alinement with said ejection chute whensaid arm is in staple-clinching position beneath said magazine; a secondarm pivoted to said magazine at the rear thereof extending toward thefront of said magazine, a third arm pivoted to said second arm at thefront thereof and having a driving connection with said blade support,movement of said third arm toward said second arm acting to move saidblade support and said magazine as a unit toward said first arm, andmeans locking said first arm to said second arm so that continuedmovement of said third arm toward said first arm after said ejectionchute has contacted said anvil causes said blade support to move towardsaid magazine.

30. In a stapling device, a magazine, a staple driver supporting memberpivoted to said magazine, an anvil carrying member pivoted to saidmagazine, an arm pivoted to said magazine, a lock for connecting saidanvil carrying member and said arm, and a lever pivoted to said arm andengageable with said supporting member.

31. In a stapling device, a magazine, a staple driver supporting memberpivoted to said magazine, a spring for urging said supporting member toraised position, an anvil carrying member pivoted to said magazine, aspring for urging said anvil carrying member away from said magazine, anarm pivoted to said magazine, a spring for urging said arm downwardly ofsaid magazine, a lock for connecting said anvil carrying member and saidarm, a lever pivoted to said arm and engageable with said supportingmember, and a spring for urging said lever away from said staplesupporting member.

gains 32. The combination with a stapling device having a'ma'gazine, astaple driver supporting memberiipivoted to said magazine and an anvilcarrying memberpivotedto said magazine, an arm pivoted tolsaid magazine.and biaseddownwardly iof said magazine, an operating handle pivoted tosaid. armiandconnected with said stapledriver supportingimember' tooperate .the

, same, and .meansfor. temporarily restraining spring reactingbetweensaid movement. of. said anvil vcarrying membenaway from said armassaidhandleisoperated. 33. .The combination 'with a stapling. devicehaving a 'magazine,..a..staple driver supporting member pivoted .tosaid. magazine and. an." anvil carrying member pivoted to said magazine,an arm pivoted to said magazine and biased downwardly of said magazine,an operating handle pivoted to said arm and connected with said stapledriver supporting member to operate the same, means for temporarilyrestraining movement of said anvil carrying member away from said arm assaid handle is operated, and a plunger secured to said staple driver andslidably guided in said arm.

34. The combination with a stapling device having a magazine, a stapledriver supporting member pivoted to said magazine and an anvil carryingmember pivoted to said magazine, an arm pivoted to said magazine andbiased downwardly of said magazine, an operating handle pivoted to saidarm and connected with said staple driver supporting member to operatethe same, means for temporarily restraining movement of said anvilcarrying member away from said arm as said handle is operated, a pivotedguide on said arm, and a plunger pivotally secured to said staple driverand movably controlled by said guide.

35. The combination with a stapling device having a magazine, a stapledriver supporting member pivoted to said magazine and an anvil carryingmember pivoted to said magazine, an arm pivoted to said magazine andbiased downwardly of said magazine, and operating handle pivoted to saidarm and connected with said staple driver supporting member to operatethe same, a tooth on said anvil carrying member, and a tooth on saidarm, one of said teeth being spring-biased into locking alignment withthe other of said teeth.

36. The combination with a stapling device having a magazine, a stapledriver supporting member pivoted to said magazine and an anvil carryingmember pivoted to said magazine, an arm pivoted to said magazine andbiased downwardly of said magazine, said arm being in the shape of ahousing having front and side walls encasing said magazine, an operatinghandle pivoted to said arm and connected with said staple driversupporting member to operate the same, and means for temporarilyrestraining the movement of said anvil carrying member away from saidarm as said handle is operated.

37. In a stapling machine, a housing, an anvil supporting member pivotedto said housing, a member pivoted at the front of said housing andhaving teeth positioned on opposite sides of said housing andresiliently biased toward the rear of said housing, and teeth on saidanvil supporting member in alignment with said first named teeth.

WILLIAM G. PANKONIN.

(References on following page) Number Name Date Remus Apr. 2, 1889Polzer May 26, 1925 Polzer Nov. 25, 1930 Goddu Jan. 31, 1933 Polzer Jan.21, 1936 Polzer Aug. 10, 1937 Stockel Nov. 2, 1937 Cavanagh Feb. 8, 1938Pankonin July 11, 1939 Bauwens May 13, 1941 Skrebba June 10, 1941 NumberNumber Name Date Crosby Aug. 12, 1941 Pankonln Feb. '3, 1942 PankoninMar. 24, 1942 Polzer June 2, 1942 Crosby Feb. 2, 1943 Vogel Feb. 1, 1944Vancura Aug. 7, 1945 Pankonin May 10, 1949 FOREIGN PATENTS Country DateGermany Feb. 25, 1936 Germany Feb. 19, 1937 Germany Sept. 16, 1940

